| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c24684033fba97d1ad845ce453a57e3 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-584
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-0266
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2603-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-822
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-0201
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2231-321 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-2409
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-2404
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-2452
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-4046
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-4061
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-1875
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-025
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-4015 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B63-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-53
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-50 |
| filingDate |
1997-08-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ef52b6955efdd2db27dbc43f3c1feb94
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e66b35130e80c6b79bc88b618bffe7a1 |
| publicationDate |
1998-02-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2212535-A1 |
| titleOfInvention |
Process for separating off phosphine oxides and alkylarylphosphines from reaction mixtures of a homogeneous hydroformylation |
| abstract |
The invention relates to a process for separating off phosphine oxides and alkylarylphosphines from the organic reaction mixture of a homogeneous hydroformylation carried out with the use of a catalyst system, which reaction mixture contains organometallic complex compounds and, in a molar excess, ammonium salts of aromatic phosphines as ligands. The process comprises subjecting the organic reaction mixture to an extractive treatment with a 0.001 - 0.5% strength by weight alkali metal hydroxide or alkaline earth metal hydroxide solution and then separating off the aqueous phase containing the phosphine oxides and alkylarylphosphines. By employing the extraction according to the invention it is possible to decrease markedly the concentration of the phosphine oxides and alkylarylphosphines in the hydro-formylation mixture. The process is suitable, in particular, for continuously operated hydroformylations. |
| priorityDate |
1996-08-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |